Main Technical Data
Main Technical Data
Rated VoltageÂ
12kV
Rated CurrentÂ
1250A
Rated Frequency
50Hz
Rated Short-time power frequency withstand voltage(1min)
42kV
Rated Lighting impulse withstand voltage
75kv
Rated short-circuit breaking currentÂ
25kA
Rated short-circuit making current(peak)
63kA
Breaking operations of rated short circuit breaking current
30Â timies
Rated sigle capacitor bank breaking currentÂ
400A
Rated short-time withstand current
25kA
Rated peak withstand current
50/63kA
Rated duration of short-circuit
4s
Mechanica life
20000times
Contact closing force due to bellows and atmosphere
80±40N
Counterforce at rated contact stroke
120±50N
Circuit resistance at rated contact forceÂ
≤25μΩ
Shelf lifeÂ
20Â years
Contact erosion limit
3mm
Weight of moving parts
≤1.3kg
Mechanical Data Required for matched vacuum switchgear
Rated contact stroke
10±1mm
Average opening speedÂ
1.0±0.25m/s
Average closing speedÂ
0.65±0.15m/s
Added contact forceÂ
2000±100N
Contact bouncing duration at closing operation
≤2ms
Contact bouncing bank amplitude of opening operation
≤2mm
Three-pole simultaneity
≤1ms
Dimensional Drawing
Model NO.: 208D
Poles Number: 3
Type: Vacuum
Function: Vacuum
Certification: ISO9001-2000, CQC
Warranty: 12 Month
Rated Voltatge: 12kv
Rated Current: 630
Rated Short-Circuit Breaking Current: 20ka
Mechanical Life: 20000 Times
Shelf Life: 20 Years
Trademark: ZGVE
Transport Package: Standard Export Packing.
Specification: Vacuum
Origin: Wenzhou
HS Code: 8538900000
ZN28 VS1 Vauum Interrupter For TD630/12-20